Neochoristodera
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Neochoristodera is a lineage of specialised crocodile-like fully aquatic choristodere reptiles. Noted for their long jaws and large size, these animals were predominant across the Northern Hemisphere,
Champsosaurus natator
Fossils of Simoedosaurus
Lateral and dorsal views of a Champsosaurus skeletal mount
Champsosaurus skull
Ikechosaurus
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Ikechosaurus is an extinct genus of choristodere reptile which existed in China and Mongolia during the Early Cretaceous. It contains four species: I. sunailinae, I. magnus, I. gaoi, and I. pijiagouen
Neochoristodera
…the relationships of the genera, which have been recovered as a polytomy in recent studies. Neochoristodera contains the named genera Champsosaurus, Ikechosaurus, Kosmodraco, Liaoxisaurus, Mengshanosaurus, Simoedosaurus and Tchoiria. Various taxa of uncertain affinities within this group are known, including a…
Ikechosaurus sp. NMNS
Closeup of the skull
Champsosaurus BW